Tearful Dwarfgoby

description

Description. Dorsal-fin rays VI – I, 8; anal-fin rays I, 7; dorsal and anal soft rays branched except first, the last ray branched to base; pectoral-fin rays 15, all unbranched, fin reaching to third anal-fin ray base; pelvic fins joined by membrane only at extreme base, no pelvic frenum, pelvic-fin membrane reduced, pelvic-fin rays I, 5, 4 th pelvicfin ray with 5 branches, 1 segment between branches, 5 th segmented pelvic-fin ray 12.9 % of 4 th ray, pelvic fins reaching to second anal-fin ray base; 11 branched caudal-fin rays, segmented caudal-fin rays 17; lateral scale rows 22, transverse scale rows 5, no scales on head, nape, breast, pectoral-fin base, midline of belly and wide areas along bases of dorsal fins, scales on body finely ctenoid; vertebrae 10 + 15 = 25; first dorsal-fin spine filamentous, extending back to base of 2 nd soft ray of second dorsal fin; cephalic sensory-pore system pattern 2 lacking only the IT pore: anterior oculoscapular canal with pores B', single C, single D, E and F', two preopercular-canal pores, N' and O'; male genital papilla non-fimbriate, reaching beyond anal-fin origin; mouth oblique, lower jaw slightly projecting, maxilla extending beyond a v

Two new dwarfgobies of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae)

diagnosis

Diagnosis. The following combination of characters distinguishes E. flebilis from congeners: cephalic sensory-pore system pattern 2 (lacking only IT pore); dorsal / anal fin-ray formula 8 / 7; pectoral-fin rays unbranched; 5 th pelvic-fin ray 12.9 % of 4 th; red-orange blotches running along the vertebral column, a distinctive narrow, redorange line under the eye, and a dark vertical line at the caudal-fin base.

Two new dwarfgobies of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae)

distribution

Distribution. Amami-oshima Island, Kerama Islands and Iriomote-jima Island, the Ryukyu Islands, Japan (Suzuki et al., 2004). Has been photographed or taken from lagoon, slope, and drop-off coral-reef habitats.

Two new dwarfgobies of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae)

etymology

Etymology. The specific epithet is from the Latin flebilis (tearful) referring to the distinctive tear-like red line under the eye, and is treated as a noun in apposition. Comparisons. Eviota flebilis belongs to the cephalic sensory-pore pattern 2 of Lachner and Karnella (1980), lacking only the IT pore. The group contains 30 described species (Greenfield & Winterbottom, 2014, Table 1), increasing to 31 with the addition of E. flebilis. It differs from species in cephalic sensory-pore pattern 2 as follows: the following species have branched pectoral-fin rays whereas they are unbranched in E. flebilis – E. afelei Jordan & Seale, E. bimaculata Lachner & Karnella, E. dorsimaculata Tornabene, Ahmadia, & Williams, E. hinanoae Tornabene, Ahmadia, & Williams, E. hoesei Gill & Jewett, E. indica Lachner & Karnella, E. japonica Jewett & Lachner, E. latifasciata Jewett & Lachner, E. lacrimosa Tornabene, Ahmadia, & Williams, E. pellucida Larson, E. piperata Greenfield & Winterbottom, E. prasina (Klunzinger), E. punctulata Jewett & Lachner, E. queenslandica Whitley, E. rubra Greenfield & Randall, E. saipanensis Fowler, E. tigrina Greenfield & Randall, E. variola Lachner & Karnella, and E. zonu

Two new dwarfgobies of the genus Eviota from the Ryukyu Islands, Japan (Teleostei: Gobiidae)